CN116179811A - Overspeed quenching oil and preparation method thereof - Google Patents

Abstract

The invention discloses overspeed quenching oil, which belongs to the field of quenching oil and comprises the following components in percentage by weight: 80% -90% of base oil; 0-5% of sodium sulfonate; sorbitol monooleate 0-5%; 0-5% of polyisobutylene succinimide; 0-5% of butyl octyl diphenylamine; 0-5% of calcium alkylphenol sulfide; 0-5% of super-base number calcium sulfonate; 0-5% of resin; 0-5% of 2, 6-di-tert-butyl-p-methylphenol; 0-10% of polyisobutene 1300; polyisobutene 24000-10%. The invention also discloses a preparation method of the overspeed quenching oil. Compared with the prior art, the quenching oil disclosed by the invention can solve the problems of shorter service life and poor cooling speed of the existing quenching oil.

Description

Overspeed quenching oil and preparation method thereof

Technical Field

The invention relates to the field of quenching oil, in particular to overspeed quenching oil and a preparation method thereof.

Background

The cooling medium used in the quenching process is called quenching medium, which plays an important role in ensuring the implementation of the quenching process. The quenching medium mainly comprises a liquid quenching medium, a gas quenching medium and a solid quenching medium, wherein the liquid quenching medium mainly comprises water, aqueous solution and quenching oil, the gas quenching medium mainly comprises air, nitrogen, argon, helium and other inert gases, and the solid quenching medium mainly comprises a metal plate, a metal mold (internally water cooling) and a fluid bed medium formed by mixing solid particles with compressed air or water.

According to the cooling rate, it can be classified into: (1) common quenching oil; (2) a fast quench oil; (3) ultra (high) speed quenching oil.

The overspeed quenching oil has a relatively fast cooling rate, which is faster than the fast quenching oil. The oil is prepared by adding a catalyst, a detergent, an antioxidant and the like into refined paraffin-based lubricating oil. The characteristic temperature of the oil temperature is not lower than 585 ℃ at 800 ℃, and the cooling time from 800 ℃ to 400 ℃ is shorter than that of the quick quenching oil. The method is mainly used for bearing parts with larger sections and deeper hardening layers in production.

The quenching oil in the current market has low flash point and high risk, and the quenching oil in the market generally has the problems of short service life and poor cooling speed because the quenching oil is used under the severe conditions of high temperature and continuous operation for a long time.

Disclosure of Invention

The invention aims at: the overspeed quenching oil and the preparation method thereof are provided for solving the problems of shorter service life and poor cooling speed of the existing quenching oil.

To this end, in one aspect, the invention provides an overspeed quenching oil comprising the following components in percentage by weight:

as a further description of the above technical solution:

comprises the following components in percentage by weight: 83-90% of base oil, 1-5% of sodium sulfonate, 0.1-5% of sorbitol monooleate, 0.1-5% of polyisobutylene succinimide, 1-10% of polyisobutylene 1300, 24001-10% of polyisobutylene, 1-5% of butyl octyl diphenylamine, 1-5% of vulcanized calcium alkylphenol, 0.1-5% of super base number calcium sulfonate, 0.1-5% of 2.6-di-tert-butyl p-methylphenol and 1-5% of resin.

As a further description of the above technical solution:

comprises the following components in percentage by weight: 89% of base oil, 2% of sodium sulfonate, 0.5% of sorbitol monooleate, 0.5% of polyisobutylene succinimide, 1300% of polyisobutylene, 2400% of polyisobutylene, 2% of butyl octyl diphenylamine, 1% of calcium alkylphenol sulfide, 0.5% of super base number calcium sulfonate, 0.5% of 2.6-di-tert-butyl p-methylphenol and 3% of resin.

As a further description of the above technical solution:

the base oil is base oil 60N or base oil 70N or a mixture of base oil 60N and base oil 70N.

On the other hand, the invention also provides a preparation method of the overspeed quenching oil, which comprises the following steps:

1) The formulation according to any one of claims 1-4, preparing each material;

2) Adding the base oil 60N and the base oil 70N into a blending kettle, and heating to 55-60 ℃;

3) Adding sodium sulfonate, sorbitol monooleate, polyisobutylene succinimide, butyl octyl diphenylamine, calcium alkyl phenol sulfide, super-base calcium sulfonate and resin into the mixture in the step 2) respectively, and uniformly stirring;

4) Respectively adding polyisobutylene 1300 and polyisobutylene 2400 heated to 50-60 ℃ into the mixture in the step 3), and uniformly stirring;

5) 2, 6-di-tert-butyl-p-methylphenol is dissolved in base oil 60N and heated to 70-86 ℃ and added to the mixed solution of step 4).

In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:

1. in the quenching oil formula, resin, polyisobutene 1300, polyisobutene 2400, sodium sulfonate, calcium alkylphenol sulfide, polyisobutene succinimide, calcium sulfonate with super base number and sorbitol monooleate are compounded to be used as a cooling promoter, so that the maximum cooling speed problem is solved; secondly, solve the cold speed problem in low temperature area.

2. In the invention, the quenching oil takes the resin, the polyisobutene 1300 and the polyisobutene 2400 as main coolants, changes the cooling rate of the oil, and adjusts the hardenability of a workpiece. The polyisobutylene 2400 is more viscous than the polyisobutylene 1300, and the ratio of the polyisobutylene 1300 to the polyisobutylene 2400 in the quench oil formulation can be flexibly adjusted according to the viscosity requirements.

3. In the invention, the calcium alkyl phenol sulfide and the super-base number calcium sulfonate play a role in neutralizing acidic products generated by oil oxidation, delaying the oxidation and prolonging the service life; 2.6-di-tert-butyl-p-methylphenol and butyl octyl diphenylamine are phenolic and amine antioxidants, and free radicals generated by oil oxidation are captured through the compounding of the phenolic antioxidants and the amine antioxidants, so that the oxidation effect is delayed, and the service life is prolonged; sodium sulfonate and sorbitol monooleate are antirust agent and lipophilic emulsifier, which are compounded to have antirust effect on the workpiece, to facilitate cleaning of the quenched workpiece, and to promote cooling rate, wherein polyisobutylene succinimide is an oil dispersing agent, so that oil sludge generated by oxidation in the oil can be dispersed in the oil, the cleanness of the oil can be maintained to a certain extent, and the service life of the oil can be prolonged.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below. While exemplary embodiments of the present disclosure are shown, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Embodiment one:

preparing the following quenching oil by weight percent: 60N 59% of base oil, 70N30% of base oil, 2% of sodium sulfonate, 0.5% of sorbitol monooleate, 0.5% of polyisobutylene succinimide, 1300% of polyisobutylene, 2400% of polyisobutylene, 2% of butyl octyl diphenylamine, 1% of calcium alkylphenol sulfide, 0.5% of super base number calcium sulfonate, 0.5% of 2.6-di-tert-butyl p-methylphenol and 3% of resin;

adding the base oil 60N and the base oil 70N into a blending kettle, and heating to 55-60 ℃; then respectively adding sodium sulfonate, sorbitol monooleate, polyisobutylene succinimide, butyl octyl diphenylamine, calcium alkylphenol sulfide, super-base calcium sulfonate and resin into the mixture, and uniformly stirring; respectively adding polyisobutylene 1300 and polyisobutylene 2400 heated to 50-60 ℃ into the mixture, and stirring uniformly; 2, 6-di-tert-butyl-p-methylphenol was dissolved in base oil 60N, heated to 70-86℃and added to the above mixed solution.

Embodiment two:

preparing the following quenching oil by weight percent: base oil 60N 88.5%, base oil 70N0%, sodium sulfonate 2%, sorbitol monooleate 0.5%, polyisobutylene succinimide 0.5%, polyisobutylene 1300 2%, polyisobutylene 2400%, butyl octyl diphenylamine 2%, calcium alkyl sulfide 1%, calcium super base sulfonate 0%, 2.6-di-tert-butyl p-methylphenol 0.5% and resin 3;

adding the base oil 60N and the base oil 70N into a blending kettle, and heating to 55-60 ℃; then respectively adding sodium sulfonate, sorbitol monooleate, polyisobutylene succinimide, butyl octyl diphenylamine, calcium alkylphenol sulfide, super-base calcium sulfonate and resin into the mixture, and uniformly stirring; respectively adding polyisobutylene 1300 and polyisobutylene 2400 heated to 50-60 ℃ into the mixture, and stirring uniformly; 2, 6-di-tert-butyl-p-methylphenol was dissolved in base oil 60N, heated to 70-86℃and added to the above mixed solution.

Embodiment III:

preparing the following quenching oil by weight percent: 60N 0% of base oil, 70N88.5% of base oil, 2% of sodium sulfonate, 0.5% of sorbitol monooleate, 0.5% of polyisobutylene succinimide, 1300% of polyisobutylene, 2400% of polyisobutylene, 2% of butyl octyl diphenylamine, 1% of calcium alkylphenol sulfide, 0% of super base number calcium sulfonate, 0.5% of 2.6-di-tert-butyl p-methylphenol and 3% of resin;

adding the base oil 60N and the base oil 70N into a blending kettle, and heating to 55-60 ℃; then respectively adding sodium sulfonate, sorbitol monooleate, polyisobutylene succinimide, butyl octyl diphenylamine, calcium alkylphenol sulfide, super-base calcium sulfonate and resin into the mixture, and uniformly stirring; respectively adding polyisobutylene 1300 and polyisobutylene 2400 heated to 50-60 ℃ into the mixture, and stirring uniformly; 2, 6-di-tert-butyl-p-methylphenol was dissolved in base oil 60N, heated to 70-86℃and added to the above mixed solution.

Embodiment four:

preparing the following quenching oil by weight percent: 60N 59% of base oil, 70N30% of base oil, 2% of sodium sulfonate, 0.5% of sorbitol monooleate, 0.5% of polyisobutylene succinimide, 0.5% of polyisobutylene 1300, 0.5% of polyisobutylene 2400, 2% of butyl octyl diphenylamine, 1% of calcium alkylphenol sulfide, 0.5% of super base number calcium sulfonate, 0.5% of 2.6-di-tert-butyl p-methylphenol and 3% of resin;

adding the base oil 60N and the base oil 70N into a blending kettle, and heating to 55-60 ℃; then respectively adding sodium sulfonate, sorbitol monooleate, polyisobutylene succinimide, butyl octyl diphenylamine, calcium alkylphenol sulfide, super-base calcium sulfonate and resin into the mixture, and uniformly stirring; respectively adding polyisobutylene 1300 and polyisobutylene 2400 heated to 50-60 ℃ into the mixture, and stirring uniformly; 2, 6-di-tert-butyl-p-methylphenol was dissolved in base oil 60N, heated to 70-86℃and added to the above mixed solution.

The quenching oil prepared in each example is compared with the common multipurpose quenching oil A (mineral oil+petroleum resin type refrigerant+antioxidant) in the market, and the comparison data are as follows:

	viscosity @40 ℃; cst (cst)	Maximum cooling rate; DEG C/s
			Example 1	11.89	112
Example two	16.75	105
			Example III	15.36	106
Example IV	16.32	103
			Cutting oil A	18.21	89

Comparison results: experiments carried out by quenching oil of different types show that the product has good cooling speed and strong oxidation resistance. The viscosity index of the product is small, the carrying amount of quenching oil can be reduced, meanwhile, the workpiece is kept clean, and the cost is saved. When the viscosity is almost the same, the viscosity index is small, the carrying-out amount is small, and because the high-heat workpiece can rapidly raise the temperature of quenching oil during quenching, the oil adhered to the workpiece is less after the temperature of the oil with small viscosity is raised, and the carrying-out amount of the oil with the workpiece is less.

Therefore, the invention has the beneficial effects that:

1. in the quenching oil formula, resin, polyisobutene 1300, polyisobutene 2400, sodium sulfonate, calcium alkylphenol sulfide, polyisobutene succinimide, calcium sulfonate with super base number and sorbitol monooleate are compounded to be used as a cooling promoter, so that the maximum cooling speed problem is solved; secondly, solve the cold speed problem in low temperature area.

2. In the invention, the quenching oil takes the resin, the polyisobutene 1300 and the polyisobutene 2400 as main coolants, changes the cooling rate of the oil, and adjusts the hardenability of a workpiece. The polyisobutylene 2400 is more viscous than the polyisobutylene 1300, and the ratio of the polyisobutylene 1300 to the polyisobutylene 2400 in the quench oil formulation can be flexibly adjusted according to the viscosity requirements.

3. In the invention, the calcium alkyl phenol sulfide and the super-base number calcium sulfonate play a role in neutralizing acidic products generated by oil oxidation, delaying the oxidation and prolonging the service life; 2.6-di-tert-butyl-p-methylphenol and butyl octyl diphenylamine are phenolic and amine antioxidants, and free radicals generated by oil oxidation are captured through the compounding of the phenolic antioxidants and the amine antioxidants, so that the oxidation effect is delayed, and the service life is prolonged; sodium sulfonate and sorbitol monooleate are antirust agent and lipophilic emulsifier, which are compounded to have antirust effect on the workpiece, to facilitate cleaning of the quenched workpiece, and to promote cooling rate, wherein polyisobutylene succinimide is an oil dispersing agent, so that oil sludge generated by oxidation in the oil can be dispersed in the oil, the cleanness of the oil can be maintained to a certain extent, and the service life of the oil can be prolonged.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (5)

1. The overspeed quenching oil is characterized by comprising the following components in percentage by weight:

2. the overspeed quenching oil of claim 1, comprising the following components in percentage by weight: 83-90% of base oil, 1-5% of sodium sulfonate, 0.1-5% of sorbitol monooleate, 0.1-5% of polyisobutylene succinimide, 1-10% of polyisobutylene 1300, 1-10% of polyisobutylene 2400, 1-5% of butyl octyl diphenylamine, 1-5% of vulcanized calcium alkylphenol, 0.1-5% of super base number calcium sulfonate, 0.1-5% of 2.6-di-tert-butyl p-methylphenol and 1-5% of resin.

3. The overspeed quenching oil of claim 1, comprising the following components in percentage by weight: 89% of base oil, 2% of sodium sulfonate, 0.5% of sorbitol monooleate, 0.5% of polyisobutylene succinimide, 1300% of polyisobutylene, 2400% of polyisobutylene, 2% of butyl octyl diphenylamine, 1% of calcium alkylphenol sulfide, 0.5% of super base number calcium sulfonate, 0.5% of 2.6-di-tert-butyl p-methylphenol and 3% of resin.

4. An overspeed quench oil according to any of claims 1-3, characterized in that said base oil is base oil 60N or base oil 70N or a mixture of base oil 60N and base oil 70N.

5. The preparation method of the overspeed quenching oil is characterized by comprising the following steps of:

1) The formulation according to any one of claims 1-4, preparing each material;

2) Adding the base oil 60N and the base oil 70N into a blending kettle, and heating to 55-60 ℃;

3) Adding sodium sulfonate, sorbitol monooleate, polyisobutylene succinimide, butyl octyl diphenylamine, calcium alkyl phenol sulfide, super-base calcium sulfonate and resin into the mixture in the step 2) respectively, and uniformly stirring;

4) Respectively adding polyisobutylene 1300 and polyisobutylene 2400 heated to 50-60 ℃ into the mixture in the step 3), and uniformly stirring;

5) 2, 6-di-tert-butyl-p-methylphenol is dissolved in base oil 60N and heated to 70-86 ℃ and added to the mixed solution of step 4).